During the COVID-19 pandemic,many people developed new hobbies at home.However,the 17-year-old Benjamin Choi,a high schooler in Virginia,US,began working on an invention that would quickly go beyond the scale of just a"pandemic project".He set out to design and build an affordable robotic,prosthetic(假體的) arm that could be mind-controlled without requiring any brain surgery,reported Smithsonian magazine.
Choi was inspired by a 60-minute video he'd watched in third grade where researchers implanted tiny sensors into a patient's brain,allowing her to move a robotic arm using her thoughts."I was really amazed but also alarmed that they require this risky open brain surgery."
Choi set out to design an improved version himself.With past experience in programming and robotics,he was able to independently design the first version of his robotic arm using his sister's 3 D printer.This initial version worked,using brain wave data and head gestures.The brain wave interpretation algorithm(算法) he had to write from scratch,for which he's now acquired a provisional patent(臨時專利權),was still to come.
In October 2020,he received a support in money from polySpectra,a company that produces durable 3 D-printed materials.They helped to produce his arm,moving it out of the prototype(原型) stage and making it working for daily use.
After over 75 designs,Choi's non-invasive,mind-controlled arm is now made from engineering grade materials.It operates using the algorithm,which is driven by artificial intelligence that interprets a user's brain waves.The arm remains affordable-it costs under S300(around 2,000 yuan) to make.
Now,the invention has earned him a spot in the top 40 finalists of one of the oldest and most prestigious science and math competitions for US high school seniors.Choi wants to continue to improve his prosthetic arm in the future.
(1)What inspired Choi to create a mind-controlled arm? DD
A.A brain surgery he read about in a magazine.
B.A famous science competition.
C.A documentary about tiny sensors.
D.A video he watched before.
(2)What did he do to create the mind-controlled arm? CC
A.He used a small 3 D printer sponsored by polySpectra.
B.He learned programming and robotics from other experts.
C.He wrote a brain wave interpretation algorithm himself.
D.He and his sister designed the first version of the robotic arm.
(3)What do we know about the latest version of the prosthetic arm? CC
A.A tiny sensor was implanted into it.
B.Choi wrote a whole new algorithm for it.
C.It is made from engineering-grade materials.
D.It is able to categorize brain wave patterns.
(4)Which of the following words best describe the mind-controlled arm? DD
A.Unique but expensive.
B.Creative but unstable.
C.Advanced and complicated.
D.Safe and affordable.
(5)Where is this text most likely from? AA
A.A scientific website
B.A students' blog.
C.A natural magazine.
D.A machine brochure.
【答案】D;C;C;D;A
【解答】
【點評】
聲明:本試題解析著作權屬菁優網所有,未經書面同意,不得復制發布。
發布:2024/5/10 8:0:9組卷:2引用:1難度:0.3
相似題
-
1.Roald Dahl was a spy,an ace fighter pilot,a chocolate historian and a medical inventor.He was also the author of Charlie and the Chocolate Factory,Matilda,The BFG,and a treasury of original,evergreen,and beloved children's books.He remains for many the world's No.1 storyteller.
Born in Llandaff,Wales,on 13th September 1916 to Norwegian parents,Harald Dahl and Sofie Magdalene Hesselberg,Dahl was named after Roald Amundsen,the Norwegian who had been the first man to reach the South Pole just four years earlier.A heroic start in life.
Wanting the best for her only son,his mother sent him to a boarding school - Repton,a renowned British public school.With schooldays happily behind him,Dahl's lust for travel took him first to Canada,then to East Africa,where he worked for an oil company until the outbreak of World War Ⅱ.He enlisted in the Royal Air Force at 23 years old.In 1953 Roald Dahl married the American actress,Patricia Neal,with whom he had five children.
There followed a burst of literary energy as his endless creativity led to one wonder after another:in 1961 James and the Giant Peach was published in the US,followed by Charlie and the Chocolate Factory.Fantastic Mr.Fox was published in 1970,the year before the film Willy Wonka and the Chocolate Factory was released.The rest of the decade saw the publication of many other classics,including Danny the Champion of the World,The Enormous Crocodile,and My Uncle Oswald.
Roald Dahl died on 23 November 1990,aged 74.He was buried in the parish church of St.Peter and St.Paul in Great Missende - the Buckinghamshire village where today The Roald Dahl Museum and Story Centre continues his extraordinary mission to amaze,thrill and inspire generations of children and their parents.
(1)What do you know about Ronald Dahl?
A.He was born in Norway.
B.He was talented in many fields.
C.His mother worked in a school.
D.His father reached the South Pole.
(2)What does the underlined word "lust" in Paragraph 3 mean?
A.Vain hope.
B.Special care.
C.Strong desire.
D.Main concern.
(3)How is Paragraph 4 mainly developed?
A.By giving examples.
B.By analyzing causes.
C.By presenting figures.
D.By making comparisons.
(4)Which words can best describe the children's books penned by Ronald Dahl?
A.Amazing and humorous.
B.Educational and serious.
C.Imaginative and scary.
D.Fascinating and encouraging.發布:2025/1/30 8:0:1組卷:3引用:2難度:0.5 -
2.On Thursday,many people were remembering the American writer Theodore Seuss Geisel -better known as "Dr Seuss".
Geisel is one of the world's most famous authors of books for children.March 2 would have seen his 113th birthday.He was born in 1904 in Springfield,Massachusetts.He died in 1991.In his honor,March 2 is known as both "Dr Seuss Day"and,in many places, "World Book Day".The aim of the observance(慶祝)is to celebrate literature and urge children around the world to read.
On Thursday,the hashtags(話題標簽)#DrSeuss and #WorldBookDay were two of the top trending topics on Twitter.
Dr Seuss is known for his fantastical and humorous books for young children.His books are filled with colorful pictures and fun rhymes(韻).Dr Seuss'works include The Cate in the Hat,Green Eggs and Ham and The Lorax.He helped generations of children learn to read - and to love reading.His books have been published in some 20 languages.
Many people used "World Book Day"to express thanks for Dr Seuss'books.One person tweeted "Thank you for making life more colorful".Others honored other favorite authors,including Roald Dahl,Maurice Sendak and J.K.Rowling.
For bookworms,however,every day may seem like a World Book Day.A "bookworm"is an informal name for someone who loves to read.As one person tweeted, "In my world,every day is World Book Day".
If you missed out on World Book Day,you will have another chance later this year to celebrate books and reading.The United Nations marks World Book and Copyright Day on April =23.That is the date that several of the world's greatest writer died.They include England's William Shakespeare and Miguel de Cervantes of Spain.
(1)What can we infer from the passage?
A.De Seuss'books have been influential in Children's reading.
B.Dr Seuss was best remembered because of his book The Lorax.
C.Books with colorful pictures and fun rhymes are attractive to people.
D.Dr Seuss,Roald Dahl,J.K.Rowling lived in the same age.
(2)Who is remembered on World book and Copyright Day?
A.Roald Dahl.
B.Maurice Sendak.
C.Miguel de Cervantes.
D.J.K.Rowling.
(3)What can be the best title of the passage?
A.The Life of Dr Seuss
B.Children's Books Written by Dr Seuss
C.Trending Topics on Twitter
D.Dr Seuss Honored on World Book Day發布:2025/1/30 8:0:1組卷:6引用:1難度:0.5 -
3.When Laura wanted to go into the garden by the back door,it was blocked by servants.
Something had happened.
"What's the matter?What's happened?"
"There's been a horrible accident/ said the cook. "A man killed."
"A man killed!Where?How?When?"
"Know those little cottages just below here,Miss?" Know them?Of course,Laura knew them. "Well,there's a young guy living there,name of Scott,a carter His horse shied (受驚)at a traction-engine,and he was thrown out on the back of his head.Killed."
"Dead!" Laura stared at the cook.
"Dead when they picked him up," said the cook. 'Just now they were taking the body home.He'﹩left a wife and five little ones."
"Jose,come here." Laura caught her sister's sleeve and dragged her through the kitchen into the garden.There she paused. "Jose!" she said,horrified, ''however are we going to stop everything?'
"Stop everything,Laura!" cried Jose in astonishment. "What do you mean?"
"Stop the garden party,of course.Why did Jose pretend?"
But Jose was still more amazed. "Stop the garden party?My dear Laura,don't be so absurd.Of course we can't do anything of the kind.Nobody expects us to.Don't be so extravagant."
"But we can't possibly have a garden party with a man dead just outside the front gate."
That really was extravagant.Those little cottages,those miserable houses,had no right to be in that rich neighbourhood in the first place.When Laura and Jose were little they were even forbidden to set foot there because of the rude language and of what they might see.It was dirty and disgusting.
"And just think of what the band would sound like to that poor woman," said Laura.
"Oh,Laura!" Jose began to be seriously annoyed,"If you're going to stop a band playing every time some one has an accident,you'll lead a very difficult life,I'm every bit as sorry about it as you.But you won't bring a drunken workman back to life by being sentimental(多愁善感的)."
"Drunk!Who said he was drunk?" Laura turned angrily on Jose, "I'm going straight up to tell mother."
"Do,dear," said Jose,gently.
"Mother,can I come into your mom?" Laura turned the big glass door-knob.
"Of course,child.Why,what's the matter?What's given you such a colour?" And Mrs.Sheridan turned round from her dressing-table.She was trying on a new hat.
"Mother,a man's been killed," began Laura.
"Not in the garden?" interrupted her mother.
"No,no!"
"Oh,what a fright you gave me!" Mrs.Sheridan sighed with relief and took off the big hat and held it on her knees.
"But listen,mother," said Laura,Breathless,half-choking,she told the dreadful story. "Of course,we can't have our party,can we?" she begged. "The band and everybody arriving.And the poor family would hear us,mother;they're nearly neighbours!"
"Oh,Laura's astonishment her mother behaved just like Jose;it was harder to bear because she seemed amused.She refused to take Laura seriously."
"But,my dear child,use your common sense.If some one had died there normally 一 and I can't understand how they keep alive in those little holes 一 we should still be having our party,shouldn't we?"
Laura had to say "yes" to that,but she felt it was all wrong.
"Mother,isn't it terribly heartless of us?" she asked.
"Darling!" Mrs.Sheridan got up and came over to her,carrying the hat. "My child!" said her mother, "the hat is yours.It's made for you.Wow!Look at yourself!And she held up her hand-mirror.
"But,mother," Laura began again.She couldn't look at herself;she turned aside.
This time Mrs.Sheridan lost patience just as Jose had done.
"You are being very absurd,Laura," she said coldly. "People like that don't expect sacrifices from us.And it's not very sympathetic to spoil everybody's enjoyment as you're doing now,"
"I don't understand,'' murmured Laura.Then,quite by chance,she saw this charming girl in the mirror,in the beautiful hat.Never had she imagined she could look like that.Is mother right?she thought.And now she hoped her mother was right.Am I being extravagant?Perhaps.Just for a moment she had another glimpse of that poor woman and those little children,and the body being carried into the house.But it all seemed blurred,unreal,like a picture in the newspaper.I'll remember it again after the party's over,she decided.And somehow that seemed quite the best plan …
(1)Laura suggested stopping everything because
A.something bad had happened in the garden
B.her neighbours were experiencing great grief
C.the servants blocked the back door of the garden
D.she wanted to provide material help for the poor family
(2)What does the last paragraph mainly tell us?
A.Laura was trying to submit herself to her family.
B.The news of the carter's death finally hit the headlines.
C.Laura hoped mother was right in choosing that hat for her.
D.A poor man's death was little more than an unimportant thing.
(3)What will most probably happen following this story?
A.Laura came up with a best plan to solve all this.
B.Laura managed to persuade her mother and sister.
C.The party just continued as planned in the garden.
D.The poor widow came over to scold the band.
(4)Which of the following can best describe Laura?
A.Sentimental and persistent.
B.Optimistic and easy-going.
C.Considerate and sympathetic.
D.Hardworking and open-minded.
(5)What does the underlined word "extravagant" probably mean?
A.Too sensible.
B.Not practical
C.Too upright.
D.Not sympathetic.
(6)Which of the following can be the best title of the story?
A.The garden party.
B.The quarrel.
C.The rich and the poor.
D.The death of a neighbour.發布:2025/1/30 8:0:1組卷:15引用:1難度:0.7